Wood core metal-sheathed door



Patented Aug. 26, 1952 Eugene. 0. Qlsson, llfinmancliaiilinm Application June 23, 1949, Seri l N 1003511.; v

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This. invention relates to wood core; metal sheathed doors and, particularlyto a door with an attractive appearance, suitable for modern store, fronts, and of; substantial construction though, economically manufactured.

Much has been done inthe field of doors, but there is still lacking a door that is in keeping with, modernistic store front designs, and that can be provided, of substantial construction at a reasonable cost; Several different hollow metal; door constructions, have been devised, but to meet the requirements, complicated construction involving trussing, interlocking tongues and channels, and quite heavymetal to prevent denting is necessary, so that, the cost becomes excessive; Some Wood, doors with a full ora partial metal covering have been provided, but have not met with much favor-for use for-front entrance doors for stores andv business places. 'I'here'is a need for a door, constructed of: materials to pro! vide a fine surface finish, and having properties comparable to an all metal hollowdoor, butwhich can be produced at a much lower-cost.

An important object of my invention is to provide a wood core, metal sheathed door by a construction, which eliminates any need for welding, which, if not impossible, would damage the finish on desirable metal surfaces. I

Another important object is to provide a construction by which all joints are. concealed, so that the door has the appearance of an all metal door.

Another objectv is to provide such a door, which although of substantial and solid construction, can be economically manufactured.

Other objects will be apparent from the de scriptionand appended claim.

For a full disclosure oimy invention, reference is made to the description following andtothe rawings, in. which V Fig. 1 is an elevational view of an upper corner of the door showing the. joini g of top. rail'and stile. I

Fig. 2 is'a sectional view of the stile, taken on the line 2-2 of Fig. 1, showing the manner in which the metal sheathing is secured to the verted' channel removed, and-with a-par the ing of feet or hand trucks." 'A ehQIL I'Z Jat each end of'a rail, engages a mortise; i3 is secured by pinning and gluing sca ves; tional manner. The solid odcorec instruction is the equivalent of gobdttooddoorhp ru'ction.

To metal sheathe the doorfso has a'rif'at'tracg tive appearance inkeepingmodern store fronts, anodized'sheet aluminum is desirable.

na stile; and

destroyed by any methol involving great" and welding itat-all is alsoimpossibl M ,7 perative'thatthejsheathin secured in some other particular manneri less stee l,; an-

, other desirable material, also presen sIfl ifi= lt wood core, and combining therewith the moldlugs for engaging a glass panel. r

Fig. 3 is a sectional view of the top rail, taken on the line 33 of Fig. l, which in addition to top edge of the door, and howiafiush construction is provided byan inverted channel;

Fig. 4 is a top'viewof thei dcor, with in preserving surface finish during welding opt q and it s ec w x e svewapme The problem is therefore "completely sheathethe door without application of heat or weldn g', and accomplish it so that'all jpints arejcon ceale'd, so that the door has the'app rancefoi'gan all metal door.; Referring to El 2, While 7 cross sectional view of a1 stile, it willbe, observed that a metal sheet h! isiorn'red'to .enve p two sides and the-outer edge of'a tilefand'th heet is formed'around the respect inner edge .and secured bv nails 15, engaging the wood core. A combination'rnolding' and, covering strip I 6 is secured by nails 11. i This conceals one row of the nails 1 5 and provides the, outside moldingst rip fora glass ,pan el; ,8. {The inside molding-strip s is e tedbrs r 2a are ing the wood core. "Ihisstrip covers the row of nails l1 and a row of the nails [5 in addition joining orfastening-is visible except the screws 20. With the screwfattached' molding strip on the inner side and the outer molding strip se-' v to remove the 'glassand make entry. 1 I By referringto Fig. 3, which is a cross sectional v ew oi jthe'top rail,'- it willbe noted that except cured as (shown, it is impossible. :for'v burglars for the top edge, the sheathing is accomplished in the same manner as for the stile. At the top edge, a strip of sheet is formed into a channel 2| and secured with nails 22, engaging the wood core. The sheets on the sides of the top rail are bent inwardly and downwardly, to form locking joints 23 over the upwardly extending legs of the channel 2|. To provide a flush and finished construction, an inverted channel 24 is placed with a close fit into the recess, formed along the top edge of the door; and secured by screws 25, engaging the wood core. The sheathing and molding for the bottom rail is formed in the same manner, except for the inverted position and greaterwidth ofbottom rail.

From the foregoing, it is apparent how' the stiles and rails are constructed; and how the moldings secure the glass panel in place. These moldings might be mitered at the cornersbutthe square end construction, as shown in Fig. 1,

is preferred. At the juncture of the rails with the stiles, a groove 26 is provided on each side for the full width of the rail, into which flanged edges 21 01: the sheets, covering respectively the rails and stiles, are fitted. This provides a smooth finished construction, and with the locking joints 7 23 is very secure. As will be noted from Fig. 4, the

end of the sheet sheathing the stile also has locking joints 23 engagingthe legs of the channel 2|. To facilitate in the manufacture and forming, these locking joints are terminated a short distance from the edge of the stile. In all respects, the joining is similar atall four corners of the door. No diificulty experienced due to expansion and contractionwith this construction. The wood core is made of thoroughly kiln dried lumberand painted with a priming coat. Being so well sheathed with meta-Lmoisture is kept out of the wood, so there is no swelling or shrinking. Sincethe metal covering is light andsecured at close intervals to the wooden core, any tendency of expansion and contraction, due to temperature changes,is overcome 'The glass panel is well set in putty around its edge, which takes care of any expansion and contraction of the glass andseals out water and draft, I i In providing an entrance type door with a neat, attractive appearance and good visibility, it is apparent that my door has many advantages. It is light, strong, fire resisting, low in cost, and if damaged, can be disassembled and repaired. It meets a great need in the present day modernization of store fronts.

While I have shown and described a preferred form of my invention, it is obvious that many changes, which are within the scope of-my invention; will be apparent, to those skilled'in the art. I therefore desire to be limited only by the scope of the appended olaim. r

WhatIclaimis: r r A sheet metal covered door, comprising stiles and rails of woodof rectangular cross-section, means for uniting said stiles :and. rails. at the corners to form aframe, a'sheet metal covering 4 enveloping each of said stiles and rails, said covering consisting of metal of fine surface finish susceptible to damage by welding and soldering and requiring securement by nails and screws, said door being characterized by progressively concealed nailing and fastening concluded by neat screw fastening, so that an appearance of an all metal door results; said metal covering comprising a, sheet enveloping the sides, outside edge and portions of the inner edge of each stile, a pair of sheets covering the sides, portions of the inner edge and extensions beyond the outside edge of each rail; a pair of sheet metal moldings of channel-like cross sectional form, adapted to fit within said frame, to secure a glass panel therebetween, said moldings having their open sides against the inner edges of said frame, and one of said moldings having a flange extendling under the edge of said glass panel, said metal covering having an opening of a width to accommodate said flange in positioning itself against said frame, nails securing said flange and the edges of said metal'covering to said frame, said moldings concealing the nails in said covering sheets, and one of said moldings also concealing the nailing in said fiang'e of the other molding, and of itself being removably secured by screw fasteners; said outside edges of said rails being provided with a metal covered construction, comprising a channel shaped member with its back nailed to said edge and its'legs extending outwardly, said extensions of said sheets extending beyond the edges of said rails and being shaped to extend over said legsand being returned in parallel relation thereto, 'to form locking joints, and a, second channel-shaped member in inverted position having a close fit into the space between said locking joints and secured with screws into the wood frame, resulting in flush edge construction; said stiles and rails having a groove at their junctures and their respective metal side coverings having flanged edges engaging said groove, resulting in a smooth joint.

EUGENE- 0-Lss01 REFERENCES CITED 0 The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 640,811 Reynolds Jan. 9,1900 678,903 Rapp July 23, 1901 849,742 Mandry Apr. 9, 1907 872,058 Dufiy Nov. 26, 1907 891,984 Duffy June 30, 1908 894,373 Ebner July 28, 1908 1,021,181 Deutschmann Mar. 26, 1912 1,045,580 McClellan Nov. 26, 1912 1,143,245 Abrahams June 15, 1915 1,680,221 Lee Aug. 7, 1928 2,021,375 Peelle Nov. 19, 1935 

